Syringe-nozzle attachment.



L. L. ZARBAUGH.

SYRINGI} NOZZLE ATTACHMENT. APPLIUATION FILED FEB.17, 1912 1,031,609.Patented-July 2, 1912.

Wii'nesses: Inve nior,

Mme

LYMAN L. ZARBAUGH, OF TOLEDO, OHIO.

SYRINGE-NOZZLE ATTACHMENT.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed February 17, 1912. Serial No. 678,367.

To all whom it may concern:

Be it known that I, LYMAN L. ZARBAUGH, a citizen of the United States,residing at No. 2742 Monroe street, in the city of Toledo, county ofLucas, and State of Ohio, have invented a new and useful Syringe- NozzleAttachment, of which the following is a specification.

My invention relates to improvements in syringe-nozzle attachments, andhas more especially to do with that class of syringes used by dentistsin cleaning cavities in the teeth and preparing them for filling.

In doing what is known as inlay work it is necessary for the dentist totake a wax impression of the cavity in the tooth. Heretofore the methodof removing the wax impression from the cavity has been to heat thepoint of a short wire, technically known a spruce-wire and insert theheated end into the wax with one hand, and then with a syringe in theother hand to direct a stream of cold water upon the wire and the wax tocool them and harden the wax. The hardened wax impression, adhering tothe. wire, is then removed from the cavity.

The object of my invention is to provide a means of inserting thesprue-wire into the wax impression while in the cavity, and of coolingthe wire and wax, by using one combined instrument in one hand, thusleaving the other hand of the operator free to hold the lips and cheekaway from the teeth, or for any other desirable uses while taking theimpression.

To attain the desired object my invention consists of a combinedsyringe-nozzle and sprue-wire, the latter so mounted upon the former asto bring the point of the wire into the path of a stream of waterejected from the nozzle.

In order that the details of construction may be fully understood I haveillustrated in the accompanying drawings a device constructed inaccordance with and embodying my invention; and representing in onefigure a side elevation thereof.

In the drawings, the reference numeral, 1, designates a dentalsyringe-nozzle of the ordinary type, having the ordinary means ofattaching it to the syringe-bulb. A lug, 2, mounted near the small endof the nozzle is provided with an orifice, 3, through which asprue-wire, 4, is passed. A set-screw, 5, holds the wire in place foruse, and allows it to be removed, or adjusted as to the distance it isallowed to project beyond the nozzle.

As will be readily observed the spruewire is set at such an angle that astream of water from the nozzle strikes upon the end of the wire that isinserted in the wax. Also that when the wire is removed from the nozzlethe syringe is adapted to all its ordinary uses.

It is obvious that other simple means of attaching the sprue-wire to thenozzle may be successfully employed, without departing from theessential features of my invention, so I do not wishto be confined tothe exact method of attaching and detaching the sprue-wire shown in thedrawings and described in the specifications.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is:

l. A sprue-wire mounted upon the nozzle of a syringe, and at an angle sothat the point of the wire is in the path of a stream of water ejectedfrom the syringe.

2. A sprue-wire detachably mounted upon the nozzle of a syringe and insuch a position that a stream of water, ejected from the syringe, willfall upon the end of the wire extending beyond the end of the nozzle.

LYMAN L. ZARBAUGH. Witnesses:

SOL. ZARBAUGH, WILLIAM G. ROWE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

